(1) Subject to paragraph (4), where a payment service provider refuses to execute a payment order or to initiate a payment transaction, it must notify the payment service user of -
(a) the refusal;
(b) if possible, the reasons for such refusal; and
(c) where it is possible to provide reasons for the refusal and those reasons relate to factual matters, the procedure for rectifying any factual errors that led to the refusal.
(2) Any notification under paragraph (1) must be given or made available in an agreed manner and at the earliest opportunity, and in any event within the periods specified in regulation 86.
(3) The framework contract may provide for the payment service provider to charge the payment service user for such refusal where the refusal is reasonably justified.
(4) The payment service provider is not required to notify the payment service user under paragraph (1) where such notification would be otherwise unlawful.
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